Issue #134: Snap install method.

tasks/install-with-snap.yml

@@ -0,0 +1,27 @@
+---
+- name: Ensure snapd is installed.
+  package:
+    name: snapd
+    state: present
+
+- name: Ensure snapd is enabled.
+  systemd:
+    name: snapd.socket
+    enabled: true
+
+- name: Enable classic snap support.
+  file:
+    source: /var/lib/snapd/snap
+    dest: /snap
+    state: link
+
+- name: Install certbot via snap.
+  snap:
+    name: certbot
+    classic: true
+
+- name: Symlink certbot into place.
+  file:
+    source: /snap/bin/certbot
+    dest: /usr/bin/certbot
+    state: link

tasks/main.yml

@@ -5,10 +5,13 @@
   when: ansible_os_family == 'RedHat'
 
 - import_tasks: install-with-package.yml
-  when: not certbot_install_from_source
+  when: certbot_install_method == 'package'
+
+- import_tasks: install-with-snap.yml
+  when: certbot_install_method == 'snap'
 
 - import_tasks: install-from-source.yml
-  when: certbot_install_from_source
+  when: certbot_install_method == 'source'
 
 - include_tasks: create-cert-standalone.yml
   with_items: "{{ certbot_certs }}"